Question

differentiate y=3x^4+x^3-x^2+5/7x^2+6​

Answer 1

$12 {x}^{3} + 3 {x}^{2} + (10 \div 7)x$

Step-by-step explanation:

It is the simplest case of differentiation..Polynomial differentiation.

${x}^{n} when \: differentiated \: gives \\ \: n \times {x}^{n - 1}$

Answer 2

Step-by-step explanation:

maximum height can be attained only when the projectile is launched at 90°

threrfore ,

h= u^2/2g

25×2×9.8= u^2

490=u^2

7√10=u

then for range ,

the maximum range occurs at 45°

R = u^2/g

R = 490/9.8

R = 50 m